PS: I would not use anything harsh to treat the pimple on your nipple, like no alcohol. I would either take a hot bath, and even better add some Epsom salts. If that's too much work or unrealistic then use some hot compresses on it, with or without covering it with more heat such as a hot water bottle. The purpose for the wet, heat and salt is to soften the pimple and have it open by itself. The salt pulls out any infection or pus. you may have to repeat this more than once. And only wear cotton shirts until it's gone. Kat
I think you should think of it the same way as you would if you had a pimple in any other place of your body. A pimple is not a serious matter even if they can be painful; it's just a pimple! Not at all even related to breast cancer.
Do you understand what I mean? Katrin